Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9672739 | Map data update device | Toshiaki Onozawa, Yoshimi Satou, Yuuko Kimura, Shinichi Tomiyama | 2017-06-06 |
| 9449158 | Expiration time authentication system, expiration time authentication device, and expiration time authentication method for applications | Mitsuru Suzuki, Kumiko Kohata | 2016-09-20 |
| 7873470 | Map moving apparatus | Mitsuru Kawahata | 2011-01-18 |
| 4911413 | Structure for fitting a valve seat support ring in a valve port | Takashi Yuki | 1990-03-27 |